Module: Cistern::Attributes

Defined in:
lib/cistern/attributes.rb

Defined Under Namespace

Modules: ClassMethods, InstanceMethods

Class Method Summary collapse

Class Method Details

.default_parser ⇒ Object 



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# File 'lib/cistern/attributes.rb', line 45

def self.default_parser
  @default_parser ||= lambda { |v, opts| v }
end

.parsers ⇒ Object 



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# File 'lib/cistern/attributes.rb', line 2

def self.parsers
  @parsers ||= {
    :string  => lambda { |v, _| v.to_s },
    :time    => lambda { |v, _| v.is_a?(Time) ? v : v && Time.parse(v.to_s) },
    :integer => lambda { |v, _| v && v.to_i },
    :float   => lambda { |v, _| v && v.to_f },
    :array   => lambda { |v, _| [*v] },
    :boolean => lambda { |v, _| ['true', '1'].include?(v.to_s.downcase) }
  }
end

.transforms ⇒ Object 



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# File 'lib/cistern/attributes.rb', line 13

def self.transforms
  @transforms ||= {
    :squash  => Proc.new do |k, _v, options|
      v      = Cistern::Hash.stringify_keys(_v)
      squash = options[:squash]

      if v.is_a?(::Hash) && squash.is_a?(Array)
        travel = lambda do |tree, path|
          if tree.is_a?(::Hash)
            travel.call(tree[path.shift], path)
          else tree
          end
        end

        travel.call(v, squash.dup)
      elsif v.is_a?(::Hash)
        squash_s = squash.to_s

        if v.key?(key = squash_s.to_sym)
          v[key]
        elsif v.has_key?(squash_s)
          v[squash_s]
        else
          v
        end
      else v
      end
    end,
    :none => lambda { |k, v, opts| v },
  }
end